Swivel-head



A l v I I l P'PLicATloN FILEDl MAR. 18'. 1918. "1,355,855, Patented Oct 19,A 1920.

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6'. HTSC'HURR AND E. L. LEES.

l l SWIVEL HEAD. -f APPLICATION FILED MAR. fg. 191s.

' Lemma oct; 19, A1920.

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.SCHURR AND E. J. LEES.

SWIVEL HEAD.

APPLIQATION HLED MAR.18. |918.

Patnted Oct. 1 9, 1920.

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c. H. SCHURR AND 5.1. LEES.

SWrVEL HEAD. APPLICATION FILED MAR. 18A 1918. l y

Patented Oot.19,1920.

555i Mi CHAELES n. scHUE'E AND- ERNEST J. LEES. or CLEVELAND, OHIO', AssIGNo'Rs rov THE f t 4LEEss- EIMDLIEE coMPANmoE c LEvELAmJ. omo.

' SWIVEL-mann".

To lall whom t concern.' f

L.1B 1t known that we, CHARnEs H. Sipnng and EREST J.' LEES', b ot h `c1t1zens of' the United States of America,residing 'at 6210,H

Carnegie avenue, city of Cleveland, in the county of Cuyahoga and State o fOhio, have useful Improvement 1n 1- inv'ented a new, and Swive'lvHeads, off :which `tlief following' is a spcification, the principle' of theinention being herein leXplaiI'ied and the best mo l e`1,1 1

which we -have contemplated 'applyingthat. l, principle,A sc ast inventions isti'nguish it `from other;

anew muet manden., designing teeny-eediameter than the clitterl'f Just "as .s'tress is the `powerapplied#and strain-is the result of crease in the torsion-al action `tively short shafts" in a V"sw stress, sotor'gue the power :app-lied i and its' concomitant islto rioni havinga's its result-f-.

ses i f maindrive shaft#tof'the pivotal shaft in the center'of the'swivelhead proper.

ant va 4twist factorj error', 2l which nerea c 'the wel Consequently; t je* 'inploy tr e communication o f'fa .:l give power therethrough withwith a' lessening oit-irregularity vthe action` Iof the cutter whichfgis'theygterrninaln the driving connection .throught theffs el 'head.' Moreover, if the-ispeedreductie` ccom plished close to the point* a latter is more satisfactorily tak Ae {of} -Mindf ful of this we have's greater number olli the gea power transmission wher eb of the shaftsresult, and have;

Metadaten closely za's' po'sfsible'to the cutter. so as to en able anincrease in the power transmitted to and hence'reliability of action.

' one object is to accomplisha longshafts, and therefore anav vdance ,of a jerky'acton on the part offlt cutter; A' further object has been-tov designanjautomatic machine accesscryfef'the character" stated which will' be compact and have a' "lenig out at the `rear-of *larger workpiece"necessitated moving the --sW- ivel'zhead'backward. 1 F

mounted y:ous connectiont'by-means'of mechanism incompactlyasse'lnbled cutter dri'vegeal-'Qing as guidewayfialpng which t its entirety.' rigid uncomplicated dri-ve; `Another objecty .Specification of Letterslatent, j;f Patented Oct. 19, 1920; vlimitation ie1 Marc'uf1s,`g y

such 'are being pivotal'shaft to I telescope into 'the swivel or. singleA trunnlon head, instead of projecting the machine whenever a ilfAdverting to thedrawingsz-f s y lFigure I' is a-front elevation of a thread '-inilling machine; embodying our invention. Il Isa top view of a middle portion Figi erebfpartly in plan and partly in section 'o diselose.theentire power transmission to thecutter'through the swivel head.

I isa vertical section ori-line III- 4` -III'- of,Fig.'II. v

. Fig. "Il is an portion -ft'he machine and surmounted s enlargedfront elevation of A was t0 .enablevirie angular or `turning adl "justlnent's `and'yet have thev Aparts hold a 1 i .chosen position relative to. eachother while thus secured1 An incidehtal-'improvement v'consists in enabling the 6`0 y Swivelmad Showing thecutter head in sec- Y to" show vthe trainof gears from the isnafvertical and longitudinal VIII! is a vertical the train l of countershat to the counter gears froln spindl h ine c'omprses a'b'ed 1 carrying ppo teends'atail stock 2 and a head stock .inwhich aiwor'k'spindle 3 is rotatably and which spindle .isin' harmonigtudinall-Lguideway .formed upon the top is adaptedftofbe movedag The crosswise' slide '-9" 'whichsupports the swivel head in ire -to al `pinion 13, thence-to only .did not improve the appearance solely to the construction of the swivel head sufficient and likewise not shown with the source of power at the head stock. This shaft 11 is seen in Figs.

I, I V of the and V and is in fact splined to permit longitudinal movement therealong of the casting 12 which `is ca 'rried upon the 1 saddle` .6.A The rotation 'ofgtheshaft 11 is first communicated, as appears 'in Fig. V,

an. idler 14 ron. a shaft' 1 5, thencel t0 a gear Figsjglhor"III.v` Thefspline shaf`t'20 is in fact-what weiwill'he'reinaft'er 'refer to'as the4 front to rear relative toa suitable hollow extension 22, Fig. V, ofthe casting 12, in whichjthe rear end ofthe shaft 22 is mountlikelihood of oecasioning unsteady and iin-- edgas appears in Fig. II. The character-,of

.certain jobs involving la'rgevsized'blanks necessitates Aa rearwarddisplacement of the swivel headv proper in order to afford suiliv'v /cient clearance for the engaging action 'of'lf blank. `Heretofore, so far'asj#l suchv rearward movement von thef... part of the y swivel head carried thl pivotal shaft 'along with"` it sov that; iti 'o'.f" necessity projected out through the casting 1 2 at their-ear. Such projecting endf-n of. but

the machine in respect tov v,compactness frequently ffinterfered with the passa'geof.'

people'or-f1ncreased the depth ofthe spac'e'j required to accommodate the machine as a" linstead of having the pivotal; shaft Whole. moverearwardly with the swivel head we have'ar-ranged to have it capable of rela` tivey movement therein by havingits splinedy construction telescope into a suitable bore 23 formed axially in the swivel head.`

The forward end of the swivelhead 21 is fashioned with a suitable recess 24 to further afford the necessary room for .movement of the cutter.v vThe rearend of the swivelihead 21 carries a worm gear 25 shown inFigs.-

Il and Vlwhich is capable' .of beingl rotatedby means of a worm 26 engaging itA from below-and adapted to be operated by4 the a "plicatiorfof a wrench` to its vproj ecting end 2 ln this manner -the'swivel head may be very easily turned to the position desired andthereafter firmly secured by means ofthefixing screws 27a shown in Figs. 'H

16`on the super-'-` imposed'shaft 17 lthefarther end'fof whichy has keyed upon itabeveled latter meshes with a beveled pinion r 19 ori". the rear -endof' @transversely extending*v splineA shaft. "?asfl'myf-be seen in either pinion 18.`4 The@ It maybe observed that the design of our "upon said Y upon said and VIII. .Mounted upon the pivotal shaft *L $3.12 pinion which meshes with a gear 32as, shown in Fig. VH. The

as may be s een in Figs. H and VIII. The

gear 34 is'lreyed to' another short shaft 35, which latter alsocarriesa pinion-36.which is in mesh with an idler '37 so as to communicate power through it to another pinion 38 on the cutter spindle 39 as may be seen upon inspection ofFigs II, IV and'IX.

tremity `40 providedwith a securing nut 41 lby meansy of which the cutter 42 may be held in place'in `the manner ,shown in Figs. I,

swivel-.head permitsof a very compact'construction but more AVvitally. accomplishes a collection' ofthe speed reduction gearing bevThe cutter spindle 39 has a projecting eX-.

tween the pivotal shaft-2O and the cutter in such a manneras to involve a series ofV very short i shafts and thereby reduce the objectionable occurrence of error attending an excessive torsion or twist action due to the applied torque.l We therebyminimize the uniform action on the part of the cutter and therefore lack 'of 'precision in the work to be lperfc'irnied by it. Moreover, by having kthe lreduction gearing of the power transmission from'the shaft .11, to the cutter 42 -as closely as possible to the latter its own power isincreasedand its performance cornation of a bed, a saddle `and -a slide carried by and "movable relativelyto said bed and 'f relativelylzg-to j each other,

y 1slide'and fashioned about its axis .with a bore,fa gear eoaxially carried by said a. head. swiveled head, and afpivotal shaft splined to said gear and adapted for axial movement' it and into said bore. swivel headl comprising the combi-- nation cfa support, a saddle longitudinally .movable therein, aslide movable in a ycrosswise d rectiony upon said saddle, a: hollow head yswiveled upon said slide, a member carried by' said head' and having a bore in communication with the hollow in saidhead, and a shaftfin telescopic connection. with said member and adapted to have one end move therethrough and intof'the hollow of. said head. l'

3."A swivel head comprising `the combi-A nation with a driving shaft and slide move able 'relatively thereto, of. a housing. strncture includingy a head pivotally mounted slide, a .pivotal 'i shaft'- mounted said head and constantly. connect axially of ed with said'driving shaft, a pinion on said last'mentioned stub shaft in mesh with said pivotal shaft pinion, a bevel pinion and bevel gear on said short shafts respectively and in mesh with each other, and gearing con-v necting said spindle with the other of said ,y

short shafts.

4t. A swivel head comprising the combi-- nation of a splined driving shaft, a support movable therealong, a head swiveled upon said support, a pivotal shaft in said head and' operatively connected with said -driving shaft, said shafts being relatively transverse, a housing structure cairied by said head, a cutter spindle mounted in said structure parallel with said driving shaft, a pair of coniparatively short shafts mounted in said housing at right angles to each other and speed reduction gearing upon said last mentioned shafts and upon said pivotal shaft and spindle foi` operatively connecting the two latter.

Aswivel -head comprising the combination with a support in which is pivoted a head, a driving shaft, a housing structure larried by said head, i pivotal shaftarranged aXially of said head and operatively connected with said drivingshaft, a cutter spindle mounted in said housing structure perpendicularly to said pivotal shaft and a transmission train connecting said spindle with said pivotal shaft and including two short shafts at right angles to each other and reduction gearing adapted to transfer rotary motion from one to the other with a. lessened torsion, steadier action and increased power.

6. A swivel head comprising the combination with a driving shaft and a movable support in which is pivoted ahead, said support and shaft being capable of distinct relative movement in transverse directions, a housing structure carried by said head, a pivotal shaft arranged axially of said head and operatively connected with said driving shaft, a cutter spindle mounted in said housing structure and adapted to assume a position parallel with said driving shaft, a pair of gears upon said pivotal shaft and spindle respectively, two angularly related shafts also mounted in said 'housing structure, and mechanism including gears upon -said last mentioned pair of shafts for operatively connecting said cutter spindle with said pivotal shaft. j

7. A swivel head comprising the combination of a driving shaft, a support movable in right angularly related directions relatively thereto, a housing structure including a head swiveled at one point upon said support, a pivotal shaft mounted for both rotary and axial movement in said head, said pivotal shaft being operatively connected with said driving shaft, said head being fashioned with a bore beyond the inner end of said pivotal shaft, a cutter spindle carried by said head, 'and gearing operatively connecting said pivotal shaft and spindle, the arrangement being such that said support may be moved along the axes of said driving and pivotal shafts re` spectively.

S. A swivel head comprising the combination of a splined driving shaft, a support `slidably connected therewith, a head swiveled upon said support, another splined shaft slidably connected -with said head Iaxially thereof 'and operatively connected with and in perpendicular relation to said driving shaft, a housing structure carried by said head, a cutter shaft mounted in said structure, and mechanism including a plurality of stub shafts and speed reduction gearing in said housing for iiecting said head-axial. and cutter shafts.

9. A swivel head comprising the combination of a splined driving shaft, a support movable therealong, a head. swiveled upon said support, a pivotal shaft in said head and operatively connected with said driving. shaft, said shafts being relatively transverse, a housing structure carried by said head, a cutter shaft mounted in said structure, and speed reduction gearingin said housing and arranged to make two right angular power transferences for i operatively connecting said pivotal and cutter shafts, said last mentioned shafts being likewise relatively transverse.

Signed by us, this 28th'day of February, 918.

CHARLES H. SCHURR. ERNEST J. LEES.

operatively con- 

